NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) has assigned preliminary ratings to six classes of Progress Residential 2017-SFR2 (Progress 2017-SFR2) single-family rental pass-through certificates. Progress 2017-SFR2 is a single-borrower, single-family rental (SFR) securitization that will be collateralized by a $271.1 million loan secured by first priority mortgages on 1,598 income-producing single-family homes. The fixed-rate loan will require interest-only payments and have a fiv